Jamie Lentin | 9007d10 | 2012-04-18 11:06:40 +0100 | [diff] [blame] | 1 | /* |
| 2 | * Copyright 2012 (C), Jamie Lentin <jm@lentin.co.uk> |
| 3 | * |
| 4 | * arch/arm/mach-kirkwood/board-dnskw.c |
| 5 | * |
| 6 | * D-link DNS-320 & DNS-325 NAS Init for drivers not converted to |
| 7 | * flattened device tree yet. |
| 8 | * |
| 9 | * This file is licensed under the terms of the GNU General Public |
| 10 | * License version 2. This program is licensed "as is" without any |
| 11 | * warranty of any kind, whether express or implied. |
| 12 | */ |
| 13 | |
| 14 | #include <linux/kernel.h> |
| 15 | #include <linux/init.h> |
| 16 | #include <linux/platform_device.h> |
| 17 | #include <linux/i2c.h> |
| 18 | #include <linux/ata_platform.h> |
| 19 | #include <linux/mv643xx_eth.h> |
| 20 | #include <linux/of.h> |
| 21 | #include <linux/gpio.h> |
| 22 | #include <linux/input.h> |
| 23 | #include <linux/gpio_keys.h> |
| 24 | #include <linux/gpio-fan.h> |
| 25 | #include <linux/leds.h> |
| 26 | #include <asm/mach-types.h> |
| 27 | #include <asm/mach/arch.h> |
| 28 | #include <asm/mach/map.h> |
| 29 | #include <mach/kirkwood.h> |
| 30 | #include <mach/bridge-regs.h> |
| 31 | #include "common.h" |
| 32 | #include "mpp.h" |
| 33 | |
| 34 | static struct mv643xx_eth_platform_data dnskw_ge00_data = { |
| 35 | .phy_addr = MV643XX_ETH_PHY_ADDR(8), |
| 36 | }; |
| 37 | |
| 38 | static struct mv_sata_platform_data dnskw_sata_data = { |
| 39 | .n_ports = 2, |
| 40 | }; |
| 41 | |
| 42 | static unsigned int dnskw_mpp_config[] __initdata = { |
| 43 | MPP13_UART1_TXD, /* Custom ... */ |
| 44 | MPP14_UART1_RXD, /* ... Controller (DNS-320 only) */ |
| 45 | MPP20_SATA1_ACTn, /* LED: White Right HDD */ |
| 46 | MPP21_SATA0_ACTn, /* LED: White Left HDD */ |
| 47 | MPP24_GPIO, |
| 48 | MPP25_GPIO, |
| 49 | MPP26_GPIO, /* LED: Power */ |
| 50 | MPP27_GPIO, /* LED: Red Right HDD */ |
| 51 | MPP28_GPIO, /* LED: Red Left HDD */ |
| 52 | MPP29_GPIO, /* LED: Red USB (DNS-325 only) */ |
| 53 | MPP30_GPIO, |
| 54 | MPP31_GPIO, |
| 55 | MPP32_GPIO, |
| 56 | MPP33_GPO, |
| 57 | MPP34_GPIO, /* Button: Front power */ |
| 58 | MPP35_GPIO, /* LED: Red USB (DNS-320 only) */ |
| 59 | MPP36_GPIO, /* Power: Turn off board */ |
| 60 | MPP37_GPIO, /* Power: Turn back on after power failure */ |
| 61 | MPP38_GPIO, |
| 62 | MPP39_GPIO, /* Power: SATA0 */ |
| 63 | MPP40_GPIO, /* Power: SATA1 */ |
| 64 | MPP41_GPIO, /* SATA0 present */ |
| 65 | MPP42_GPIO, /* SATA1 present */ |
| 66 | MPP43_GPIO, /* LED: White USB */ |
| 67 | MPP44_GPIO, /* Fan: Tachometer Pin */ |
| 68 | MPP45_GPIO, /* Fan: high speed */ |
| 69 | MPP46_GPIO, /* Fan: low speed */ |
| 70 | MPP47_GPIO, /* Button: Back unmount */ |
| 71 | MPP48_GPIO, /* Button: Back reset */ |
| 72 | MPP49_GPIO, /* Temp Alarm (DNS-325) Pin of U5 (DNS-320) */ |
| 73 | 0 |
| 74 | }; |
| 75 | |
| 76 | static struct gpio_led dns325_led_pins[] = { |
| 77 | { |
| 78 | .name = "dns325:white:power", |
| 79 | .gpio = 26, |
| 80 | .active_low = 1, |
| 81 | .default_trigger = "default-on", |
| 82 | }, |
| 83 | { |
| 84 | .name = "dns325:white:usb", |
| 85 | .gpio = 43, |
| 86 | .active_low = 1, |
| 87 | }, |
| 88 | { |
| 89 | .name = "dns325:red:l_hdd", |
| 90 | .gpio = 28, |
| 91 | .active_low = 1, |
| 92 | }, |
| 93 | { |
| 94 | .name = "dns325:red:r_hdd", |
| 95 | .gpio = 27, |
| 96 | .active_low = 1, |
| 97 | }, |
| 98 | { |
| 99 | .name = "dns325:red:usb", |
| 100 | .gpio = 29, |
| 101 | .active_low = 1, |
| 102 | }, |
| 103 | }; |
| 104 | |
| 105 | static struct gpio_led_platform_data dns325_led_data = { |
| 106 | .num_leds = ARRAY_SIZE(dns325_led_pins), |
| 107 | .leds = dns325_led_pins, |
| 108 | }; |
| 109 | |
| 110 | static struct platform_device dns325_led_device = { |
| 111 | .name = "leds-gpio", |
| 112 | .id = -1, |
| 113 | .dev = { |
| 114 | .platform_data = &dns325_led_data, |
| 115 | }, |
| 116 | }; |
| 117 | |
| 118 | static struct gpio_led dns320_led_pins[] = { |
| 119 | { |
| 120 | .name = "dns320:blue:power", |
| 121 | .gpio = 26, |
| 122 | .active_low = 1, |
| 123 | .default_trigger = "default-on", |
| 124 | }, |
| 125 | { |
| 126 | .name = "dns320:blue:usb", |
| 127 | .gpio = 43, |
| 128 | .active_low = 1, |
| 129 | }, |
| 130 | { |
| 131 | .name = "dns320:orange:l_hdd", |
| 132 | .gpio = 28, |
| 133 | .active_low = 1, |
| 134 | }, |
| 135 | { |
| 136 | .name = "dns320:orange:r_hdd", |
| 137 | .gpio = 27, |
| 138 | .active_low = 1, |
| 139 | }, |
| 140 | { |
| 141 | .name = "dns320:orange:usb", |
| 142 | .gpio = 35, |
| 143 | .active_low = 1, |
| 144 | }, |
| 145 | }; |
| 146 | |
| 147 | static struct gpio_led_platform_data dns320_led_data = { |
| 148 | .num_leds = ARRAY_SIZE(dns320_led_pins), |
| 149 | .leds = dns320_led_pins, |
| 150 | }; |
| 151 | |
| 152 | static struct platform_device dns320_led_device = { |
| 153 | .name = "leds-gpio", |
| 154 | .id = -1, |
| 155 | .dev = { |
| 156 | .platform_data = &dns320_led_data, |
| 157 | }, |
| 158 | }; |
| 159 | |
| 160 | static struct i2c_board_info dns325_i2c_board_info[] __initdata = { |
| 161 | { |
| 162 | I2C_BOARD_INFO("lm75", 0x48), |
| 163 | }, |
| 164 | /* Something at 0x0c also */ |
| 165 | }; |
| 166 | |
| 167 | static struct gpio_keys_button dnskw_button_pins[] = { |
| 168 | { |
| 169 | .code = KEY_POWER, |
| 170 | .gpio = 34, |
| 171 | .desc = "Power button", |
| 172 | .active_low = 1, |
| 173 | }, |
| 174 | { |
| 175 | .code = KEY_EJECTCD, |
| 176 | .gpio = 47, |
| 177 | .desc = "USB unmount button", |
| 178 | .active_low = 1, |
| 179 | }, |
| 180 | { |
| 181 | .code = KEY_RESTART, |
| 182 | .gpio = 48, |
| 183 | .desc = "Reset button", |
| 184 | .active_low = 1, |
| 185 | }, |
| 186 | }; |
| 187 | |
| 188 | static struct gpio_keys_platform_data dnskw_button_data = { |
| 189 | .buttons = dnskw_button_pins, |
| 190 | .nbuttons = ARRAY_SIZE(dnskw_button_pins), |
| 191 | }; |
| 192 | |
| 193 | static struct platform_device dnskw_button_device = { |
| 194 | .name = "gpio-keys", |
| 195 | .id = -1, |
| 196 | .num_resources = 0, |
| 197 | .dev = { |
| 198 | .platform_data = &dnskw_button_data, |
| 199 | } |
| 200 | }; |
| 201 | |
| 202 | /* Fan: ADDA AD045HB-G73 40mm 6000rpm@5v */ |
| 203 | static struct gpio_fan_speed dnskw_fan_speed[] = { |
| 204 | { 0, 0 }, |
| 205 | { 3000, 1 }, |
| 206 | { 6000, 2 }, |
| 207 | }; |
| 208 | static unsigned dnskw_fan_pins[] = {46, 45}; |
| 209 | |
| 210 | static struct gpio_fan_platform_data dnskw_fan_data = { |
| 211 | .num_ctrl = ARRAY_SIZE(dnskw_fan_pins), |
| 212 | .ctrl = dnskw_fan_pins, |
| 213 | .num_speed = ARRAY_SIZE(dnskw_fan_speed), |
| 214 | .speed = dnskw_fan_speed, |
| 215 | }; |
| 216 | |
| 217 | static struct platform_device dnskw_fan_device = { |
| 218 | .name = "gpio-fan", |
| 219 | .id = -1, |
| 220 | .dev = { |
| 221 | .platform_data = &dnskw_fan_data, |
| 222 | }, |
| 223 | }; |
| 224 | |
| 225 | static void dnskw_power_off(void) |
| 226 | { |
| 227 | gpio_set_value(36, 1); |
| 228 | } |
| 229 | |
| 230 | /* Register any GPIO for output and set the value */ |
| 231 | static void __init dnskw_gpio_register(unsigned gpio, char *name, int def) |
| 232 | { |
| 233 | if (gpio_request(gpio, name) == 0 && |
| 234 | gpio_direction_output(gpio, 0) == 0) { |
| 235 | gpio_set_value(gpio, def); |
| 236 | if (gpio_export(gpio, 0) != 0) |
| 237 | pr_err("dnskw: Failed to export GPIO %s\n", name); |
| 238 | } else |
| 239 | pr_err("dnskw: Failed to register %s\n", name); |
| 240 | } |
| 241 | |
| 242 | void __init dnskw_init(void) |
| 243 | { |
| 244 | kirkwood_mpp_conf(dnskw_mpp_config); |
| 245 | |
| 246 | kirkwood_ehci_init(); |
| 247 | kirkwood_ge00_init(&dnskw_ge00_data); |
| 248 | kirkwood_sata_init(&dnskw_sata_data); |
| 249 | kirkwood_i2c_init(); |
| 250 | |
| 251 | platform_device_register(&dnskw_button_device); |
| 252 | platform_device_register(&dnskw_fan_device); |
| 253 | |
| 254 | if (of_machine_is_compatible("dlink,dns-325")) { |
| 255 | i2c_register_board_info(0, dns325_i2c_board_info, |
| 256 | ARRAY_SIZE(dns325_i2c_board_info)); |
| 257 | platform_device_register(&dns325_led_device); |
| 258 | |
| 259 | } else if (of_machine_is_compatible("dlink,dns-320")) |
| 260 | platform_device_register(&dns320_led_device); |
| 261 | |
| 262 | /* Register power-off GPIO. */ |
| 263 | if (gpio_request(36, "dnskw:power:off") == 0 |
| 264 | && gpio_direction_output(36, 0) == 0) |
| 265 | pm_power_off = dnskw_power_off; |
| 266 | else |
| 267 | pr_err("dnskw: failed to configure power-off GPIO\n"); |
| 268 | |
| 269 | /* Ensure power is supplied to both HDDs */ |
| 270 | dnskw_gpio_register(39, "dnskw:power:sata0", 1); |
| 271 | dnskw_gpio_register(40, "dnskw:power:sata1", 1); |
| 272 | |
| 273 | /* Set NAS to turn back on after a power failure */ |
| 274 | dnskw_gpio_register(37, "dnskw:power:recover", 1); |
| 275 | } |